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How to plot contours on a map with ggplot2 when data is on an irregular grid? [closed]
I wrote a question on StackOverflow earlier today before I found out about this site. It seems that the question may be more relevant for this stackexchange. I was going to copy and paste the question ...
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R: How can I create a polygon from several polygons and a line?
I have some spatial objects that I want to combine, namely three polygons and a line. The ultimate goal is to create a polygon that I can overlay on an area of a map of administrative divisions of the ...
